<template>
  <div class="shopcar-container">
    <!-- 商品列表区域 -->
    <div class="goods-list" v-for="(item, i) in goodslist" :key="item.id">
      <div class="mui-card">
        <div class="mui-card-content">
          <div class="mui-card-content-inner">
            <mt-switch
              v-model="$store.getters.getGoodsSelected[item.id]"
              @change="
                selectedChanged(
                  item.id,
                  $store.getters.getGoodsSelected[item.id]
                )
              "
            ></mt-switch>
            <img :src="item.thub_path" />
            <div class="info">
              <h1>{{ item.title }}</h1>
              <p>
                <span class="price">￥{{ item.sell_price }}</span>
                <numbox
                  :initcount="$store.getters.getGoodsCount[item.id]"
                  :goodsid="item.id"
                ></numbox>
                <a href="#" @click.prevent="remove(item.id, i)">删除</a>
              </p>
            </div>
          </div>
        </div>
      </div>
    </div>
    <!--结算区域-->
    <div class="mui-card">
      <div class="mui-card-content">
        <div class="mui-card-content-inner jiesuan">
          <div class="left">
            <p>总计（不含运费）</p>
            <p>
              以勾选商品
              <span class="red">{{
                $store.getters.getGoodsCountAndAmount.count
              }}</span>
              件，总价
              <span class="red"
                >￥{{ $store.getters.getGoodsCountAndAmount.amount }}</span
              >
            </p>
          </div>
          <mt-button type="danger">去结算</mt-button>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
  import numbox from '../subcomponents/shopcar_numbox.vue'
  export default {
    data() {
      return {
        goodslist: [], //购物车中所有商品的数据
      }
    },
    created() {
      this.getGoodsList()
    },
    methods: {
      getGoodsList() {
        this.$axios.get('./json/carlist.json').then((result) => {
          //1.获取store中所有商品的id，然后拼接出一个用逗号隔开的字符串
          /*var idArr = []
                  this.$store.state.car.forEach(item => idArr.push(item.id));*/
          var idArr = []
          idArr = this.$store.state.car
          if (idArr.length <= 0) {
            return
          } //如果购物车中没有数据则停止运行
          if (result.data.status === 0) {
            //成功，把数据保存到data上
            //this.goodslist = result.body.message //获取所有购物车中商品列表
            var messageList = result.data.message
            this.goodslist = this.myFilter(messageList, idArr)
            console.log(idArr)
          }
        })
      },
      /*myFilter2(arr1,arr2) {
                var ret = [];
                arr2.forEach(ele => {
                        var findEle = arr1.find(x => x.id == ele.id );
                        // 如果在arr1中找到,添加到arr1中
                        findEle ? ret.push(findEle) : '';
                });
                return ret;
            }*/
      myFilter(arr1, arr2) {
        //筛选出所有arr1中含有arr2.id
        return arr1.filter((ele) => arr2.filter((x) => x.id == ele.id).length > 0)
      },
      remove(id, index) {
        //点击删除，把商品从 store 中根据传递的ID删除，同时按index索引将goodslist中的数据删除
        this.goodslist.splice(index, 1)
        this.$store.commit('removeFromCar', id)
      },
      selectedChanged(id, val) {
        //每当点击开关，获取最新的选中状态
        this.$store.commit('updateGoodsSelected', { id, selected: val })
      },
    },
    components: {
      //注册挂载组件
      numbox,
    },
  }
</script>
<style lang="less" scoped>
  .shopcar-container {
    background-color: #eee;
    overflow: hidden;
    .goods-list {
      .mui-card-content-inner {
        display: flex;
        justify-items: center;
      }
      img {
        width: 60px;
        height: 60px;
      }
      h1 {
        font-size: 13px;
      }
      .info {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        p {
          display: flex;
          .price {
            color: #ff5000;
            font-weight: bold;
          }
        }
      }
    }
    .jiesuan {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      .red {
        color: red;
        font-weight: bold;
      }
    }
  }
</style>